Do short courses in evidence based medicine improve knowledge and skills? Validation of Berlin questionnaire and before and after study of courses in evidence based medicine. by Fritsche, L, Greenhalgh, T, Falck-Ytter, Y, Neumayer, H, Kunz, R

GRADE guidelines: 2. Framing the question and deciding on important outcomes. by Guyatt, G, Oxman, A, Kunz, R, Atkins, D, Brozek, J, Vist, G, Alderson, P, Glasziou, P, Falck-Ytter, Y, Schünemann, H

GRADE guidelines: 1. Introduction-GRADE evidence profiles and summary of findings tables. by Guyatt, G, Oxman, A, Akl, E, Kunz, R, Vist, G, Brozek, J, Norris, S, Falck-Ytter, Y, Glasziou, P, DeBeer, H, Jaeschke, R, Rind, D, Meerpohl, J, Dahm, P, Schünemann, H

GRADE guidelines: 7. Rating the quality of evidence--inconsistency. by Guyatt, G, Oxman, A, Kunz, R, Woodcock, J, Brozek, J, Helfand, M, Alonso-Coello, P, Glasziou, P, Jaeschke, R, Akl, E, Norris, S, Vist, G, Dahm, P, Shukla, V, Higgins, J, Falck-Ytter, Y, Schünemann, H

GRADE guidelines: 9. Rating up the quality of evidence. by Guyatt, G, Oxman, A, Sultan, S, Glasziou, P, Akl, E, Alonso-Coello, P, Atkins, D, Kunz, R, Brozek, J, Montori, V, Jaeschke, R, Rind, D, Dahm, P, Meerpohl, J, Vist, G, Berliner, E, Norris, S, Falck-Ytter, Y, Murad, M, Schünemann, H